ignore linker errors on macOS

Author: jyn514

src/bootstrap/src/core/build_steps/compile.rs

@@ -592,6 +592,11 @@ pub fn std_cargo(builder: &Builder<'_>, target: TargetSelection, stage: u32, car
     // separate setting for the compiler.
     cargo.rustflag("-Cforce-frame-pointers=yes");
 
+    // Ignore linker warnings on macOS for now. These are complicated to fix and don't affect the build.
+    if target.contains("apple-darwin") {
+        cargo.rustflag("-Alinker-messages");
+    }
+
     let html_root =
         format!("-Zcrate-attr=doc(html_root_url=\"{}/\")", builder.doc_rust_lang_org_channel(),);
     cargo.rustflag(&html_root);